To master MBSE requires the balanced mastery of the Systems Engineering disciple and a mature architecture modeling language, typically SysML.
You can find useful information about mastering Systems Engineering in the INCOSE Systems Engineering Handbook
on the INCOSE (International Council on Systems Engineering)
You can find useful information about mastering SysML in the What is the best way to learn SysML?
FAQ on the SysML Forum
if you want to accelerate your learning process, we recommend that you find a MBSE expert to mentor you. If you don't have ready access to a MBSE expert, check out the MBSE Training services on the MBSE Training
page of this web.